28843750

素因数分解:

$2^1\times 5^6\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:116

約数の個数: 56

約数和(自身を含む): 59061744

約数和(自身を除く): 30217994

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 71, 125, 130, 142, 250, 325, 355, 625, 650, 710, 923, 1250, 1625, 1775, 1846, 3125, 3250, 3550, 4615, 6250, 8125, 8875, 9230, 15625, 16250, 17750, 23075, 31250, 40625, 44375, 46150, 81250, 88750, 115375, 203125, 221875, 230750, 406250, 443750, 576875, 1109375, 1153750, 2218750, 2884375, 5768750, 14421875, 28843750]

約数ペア:

[(1, 28843750), (2, 14421875), (5, 5768750), (10, 2884375), (13, 2218750), (25, 1153750), (26, 1109375), (50, 576875), (65, 443750), (71, 406250), (125, 230750), (130, 221875), (142, 203125), (250, 115375), (325, 88750), (355, 81250), (625, 46150), (650, 44375), (710, 40625), (923, 31250), (1250, 23075), (1625, 17750), (1775, 16250), (1846, 15625), (3125, 9230), (3250, 8875), (3550, 8125), (4615, 6250)]